Finding the Fourth Proportional to 126,441.23, 174,493.92 and 72,726.17

Step by Step Solution

1. Step 1: Write the proportion equation
   126,441.23 : 174,493.92 = 72,726.17 : x
2. Step 2: Convert to fraction form
   126,441.23/174,493.92 = 72,726.17/x
3. Step 3: Cross multiply
   126,441.23x = 174,493.92 × 72,726.17
4. Step 4: Simplify right side
   126,441.23x = 12,690,274,489.89
5. Step 5: Solve for x
   x = 12,690,274,489.89/126,441.23
6. Step 6: Final answer
   x = 100,365.00